Find the acc missing and newly added

Hi v-jianboli-msft;

Thanks for the solution the thing is I have find the count of accounts missing and added. How do I change the DAX.

and the other thing is 

Hi v-jianboli-msft ,

quick question on finding missing and added accounts. 

I have an other column called F_P that says whether the account is active or deactivated or newly added. I want to change the formula accordingly. 

For example, above table has an account 1234 in both july and august. But in July the F_P is 1 which means there is one account. but in august they have 2 so one is added that goes into new activation and 1 is base. 

other example, 1235 in July F_P is 2 which means one account with two different products(phone/tv connection) where as F_P in august is 1 which means the account has deactivated some connection which goes into deact.

Please Help